/* ==========================================================================
   TOKO LISTRIK NUSANTARA - DESIGN SYSTEM & STYLESHEET
   Clean, Modern, Accessible & High-Performance Static CSS
   ========================================================================== */

:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #0284c7;
  --color-accent-hover: #0369a1;
  --color-accent-light: #e0f2fe;
  --color-warning: #d97706;
  --color-warning-bg: #fef3c7;
  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-danger: #dc2626;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-subtle: #cbd5e1;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-text-light: #f1f5f9;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.05);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --max-width: 1200px;
  --header-height: 72px;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}

a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

button, input, select, textarea {
  font: inherit;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-primary);
  color: #ffffff;
  padding: 12px 20px;
  z-index: 9999;
  font-weight: 700;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
  outline: 3px solid #facc15;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Layout & Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.main-content {
  flex: 1 0 auto;
  padding-bottom: 60px;
}

.section {
  padding: 48px 0;
}

.section-alt {
  background-color: #f1f5f9;
}

/* --------------------------------------------------------------------------
   Top Notice / Banner
   -------------------------------------------------------------------------- */
.top-notice {
  background-color: var(--color-primary);
  color: #94a3b8;
  font-size: 0.825rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-notice-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.notice-badge {
  display: inline-block;
  background-color: #0369a1;
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 8px;
}

.top-notice a {
  color: #38bdf8;
  text-decoration: none;
}

.top-notice a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo img {
  height: 44px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-link {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #16a34a;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.btn-nav-cta:hover {
  background-color: #15803d;
  color: #ffffff;
  text-decoration: none;
}

.nav-toggle-btn {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text);
  font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb-nav {
  padding: 16px 0;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  gap: 8px;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-text-subtle);
}

.breadcrumb-item a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.breadcrumb-item[aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Hero Component
   -------------------------------------------------------------------------- */
.hero-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(2, 132, 199, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: #7dd3fc;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: #38bdf8;
}

.hero-lead {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 28px;
  backdrop-filter: blur(8px);
}

.hero-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: #ffffff;
}

.hero-card p {
  font-size: 0.95rem;
  color: #94a3b8;
  margin-bottom: 20px;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
}

.stat-item .stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: #facc15;
}

.stat-item .stat-lbl {
  font-size: 0.825rem;
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   Buttons & CTAs
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease-in-out;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-subtle);
}

.btn-secondary:hover {
  background-color: #f1f5f9;
  border-color: var(--color-text-subtle);
}

.btn-whatsapp {
  background-color: #16a34a;
  color: #ffffff;
}

.btn-whatsapp:hover {
  background-color: #15803d;
  color: #ffffff;
}

.btn-sm {
  font-size: 0.85rem;
  padding: 8px 16px;
}

.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-header {
  margin-bottom: 36px;
}

.section-tag {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.3;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-top: 8px;
}

/* --------------------------------------------------------------------------
   Category Cards
   -------------------------------------------------------------------------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.category-image-wrapper {
  aspect-ratio: 4 / 3;
  background-color: #f1f5f9;
  overflow: hidden;
}

.category-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.category-card:hover .category-image-wrapper img {
  transform: scale(1.03);
}

.category-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.category-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-title a {
  color: var(--color-text);
  text-decoration: none;
}

.category-card:hover .category-title a {
  color: var(--color-accent);
}

.category-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.category-action {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   Product Cards
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.product-card-thumb {
  aspect-ratio: 1 / 1;
  background-color: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.product-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

.badge-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge-dummy {
  position: absolute;
  top: 12px;
  right: 12px;
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(217, 119, 6, 0.3);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.product-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-brand {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.product-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.product-card-title a {
  color: var(--color-text);
  text-decoration: none;
}

.product-card:hover .product-card-title a {
  color: var(--color-accent);
}

.product-card-sku {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-text-subtle);
  margin-bottom: 12px;
}

.product-card-specs {
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  padding: 8px 12px;
  background-color: #f8fafc;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-card-specs li {
  display: flex;
  justify-content: space-between;
}

.product-card-specs .spec-k {
  color: var(--color-text-subtle);
}

.product-card-specs .spec-v {
  font-weight: 600;
}

.product-card-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price-box {
  display: flex;
  flex-direction: column;
}

.price-label {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

.price-value {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Brand Grid
   -------------------------------------------------------------------------- */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.brand-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.brand-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.brand-logo-wrap {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.brand-logo-wrap img {
  max-height: 50px;
  width: auto;
}

.brand-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.brand-count {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

/* --------------------------------------------------------------------------
   Article / Guide Cards
   -------------------------------------------------------------------------- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.article-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.article-card-thumb {
  aspect-ratio: 16 / 9;
  background-color: #f1f5f9;
  overflow: hidden;
}

.article-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  margin-bottom: 10px;
  display: flex;
  gap: 12px;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.article-title a {
  color: var(--color-text);
  text-decoration: none;
}

.article-card:hover .article-title a {
  color: var(--color-accent);
}

.article-excerpt {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.article-readmore {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   Product Detail Page (PDP)
   -------------------------------------------------------------------------- */
.pdp-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.pdp-gallery-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.pdp-main-image {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdp-main-image img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.pdp-info-box {
  display: flex;
  flex-direction: column;
}

.pdp-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.pdp-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pdp-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.pdp-meta-item strong {
  color: var(--color-text);
}

.pdp-price-banner {
  background-color: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
}

.pdp-price-num {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-primary);
}

.pdp-price-unit {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: normal;
}

.pdp-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

/* Marketplace CTA Container */
.pdp-marketplace-cta {
  background-color: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  margin-bottom: 24px;
}

.marketplace-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.marketplace-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.marketplace-markup-badge {
  background-color: #fee2e2;
  color: #b91c1c;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 9999px;
  border: 1px solid #fecaca;
}

.marketplace-btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 10px;
}

.btn-marketplace {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.15s ease-in-out;
  border: 1px solid transparent;
}

.btn-marketplace svg {
  flex-shrink: 0;
}

.btn-shopee {
  background-color: #ee4d2d;
  color: #ffffff;
}

.btn-shopee:hover {
  background-color: #d73211;
  color: #ffffff;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(238, 77, 45, 0.25);
}

.btn-tokopedia {
  background-color: #03ac0e;
  color: #ffffff;
}

.btn-tokopedia:hover {
  background-color: #028a0b;
  color: #ffffff;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(3, 172, 14, 0.25);
}

.marketplace-note {
  font-size: 0.775rem;
  color: var(--color-text-subtle);
  line-height: 1.5;
}

/* Specs Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95rem;
}

.specs-table th, .specs-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.specs-table th {
  background-color: #f8fafc;
  color: var(--color-text-muted);
  width: 35%;
  font-weight: 600;
}

.specs-table td {
  color: var(--color-text);
  font-weight: 500;
}

.specs-table tr:hover td {
  background-color: #f8fafc;
}

/* Content blocks */
.content-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}

.content-box h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.content-box p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.content-box p:last-child {
  margin-bottom: 0;
}

/* Alert Boxes */
.alert-box {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin: 20px 0;
  font-size: 0.925rem;
  line-height: 1.6;
}

.alert-box.info {
  background-color: var(--color-accent-light);
  border: 1px solid #bae6fd;
  color: #0369a1;
}

.alert-box.warning {
  background-color: var(--color-warning-bg);
  border: 1px solid #fde68a;
  color: #92400e;
}

.alert-box.danger {
  background-color: #fee2e2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* --------------------------------------------------------------------------
   Article Content / Reader Styles
   -------------------------------------------------------------------------- */
.article-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 36px;
}

.article-hero-img {
  max-width: 900px;
  margin: 0 auto 40px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.article-prose {
  max-width: 780px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #334155;
}

.article-prose h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 40px 0 16px;
}

.article-prose h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 28px 0 12px;
}

.article-prose p {
  margin-bottom: 24px;
}

.article-prose ul, .article-prose ol {
  margin-bottom: 24px;
  padding-left: 28px;
}

.article-prose li {
  margin-bottom: 8px;
}

.sources-box {
  background-color: #f8fafc;
  border-left: 4px solid var(--color-accent);
  padding: 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: 40px;
}

.sources-box h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.sources-box ul {
  list-style: none;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   FAQ Component
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question:hover {
  background-color: #f8fafc;
  color: var(--color-accent);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-primary);
  color: #94a3b8;
  padding: 64px 0 24px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col h3, .footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.footer-about p {
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #38bdf8;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.825rem;
}

.footer-bottom a {
  color: #cbd5e1;
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pdp-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  .nav-toggle-btn {
    display: block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 20px;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.is-open {
    display: block;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .nav-link {
    padding: 10px 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .header-actions .btn-nav-cta {
    display: none;
  }
}

@media (max-width: 540px) {
  .marketplace-btn-row {
    grid-template-columns: 1fr;
  }
}